1000 posts and on a good one too, The adding of solar panals would be major big bucks. Facing due south you would benefit from them yes but remember we are in Ohio, how many days of direct sunshine do we really get. 
The cheapest thing to put up in that vaulted ceiling would be a ceiling fan, run it year round. Warm air rises so in the winter in keeps it down on you and in the summer it will pull it up. You just change direction the blades are spinning. Just run it on low.
Ussually Home Depot runs specials, if you buy 8 bags of blown in insulation, you get the use of the machine for free. If you can get to that part of the house through the attic, that would be one way to go.

The cheapest thing to put up in that vaulted ceiling would be a ceiling fan, run it year round. Warm air rises so in the winter in keeps it down on you and in the summer it will pull it up. You just change direction the blades are spinning. Just run it on low.
Ussually Home Depot runs specials, if you buy 8 bags of blown in insulation, you get the use of the machine for free. If you can get to that part of the house through the attic, that would be one way to go.
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